Casing for compound motors.



No. 781,648. PATENTED FEB. 7, 1905. D. P. GRAHAM & P. A. FOX. CASING FOR COMPOUND MOTORS. APPLICATION FILED APR. 1, 1903. RENEWED NOV. 10. 1904.

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Fluvcul'ozs N0. 781,648. PATENTED FEB. '7, 1905. D. F. GRAHAM & P. A. FOX.

CASING FOR COMPOUND MOTORS.

APPLICATION FILED APR. 1, 1903. RENEWED NOV. 10. 1904.

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Q Vi lime/moo UNITED STATES Patented. February 7. 1905,

PATENT OFFICE.

DAVID E. GRAHAM AND FRANK 'A. FOX. OF- STAMFORD, CONNECTICUT,

ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE EISENHUTH HORSE- LESS VEHICLE COMPANY, OE MIDDLETOWN, CONNECTICUT, A COR- PORATION OF MAINE.

OASlNG FOR COMPOUND MOTORS- SPECIFIGATION forming of Letters PatentNo. 781,648, dated February 7, 1905.

Application filed April 1, 1903. Renewed November 10, 1904. Serial No. 232,138. I

To all whom, it may concern.-

Be it known that we, DAVID F. GRAHAM and FRANK A. Fox, citizens of the United States, residing at Stamford, in the county of Fair- 5 field and State of Connecticut, have invented certain new and useful Improvements in Casings for Compound Motors, of which the following is a specification.

' -Our invention relates to improvements in I combustion-motors, and more particularly to an improved casing for containing the shafts of the motor.

One object of the invention is to provide an improved casing. havinga longitudinally-extending chamber olfset therefrom and designed to contain a cam-shaft for operating the valves and so constructed and disposed with respect to the main portion of the'casing that all oil splashed into the said offset and bearings by the movement of the cranks will drain back into the main portion of the casing.

A further object of the invention is to pro- A vide an improved casing forming a chamber for the crank-shaft of the motor, which casing 5 is constructed in sections detachably secured together and arranged to clamp between them the bearings for the crank-shaft, the arrangement being such that the crank-shaft chamber may be opened without affecting the adjust- 3 ment of the bearings on the shaft, thus permitting the employment of integral or undi-, vided bushings carrying cone-bearings that can be adjusted without disturbing the joint in the casing; and a further object of the invention is to provide a two-part crank-shaft casing in the upper part of which the bearings 'for the shaft maybe. held to permit the shaft to be secured in place before the lower section is placed in position.

The invention also comprises other features, which will be hereinafter described, and the construction of'the improved casing will be fully described in connection with the accompanying drawings, and its points of novelty will be particularly pointed out in the appended claim, 7

In the drawings, Figure 1 is a sectional elevation taken through the crank-shaft axis, and Fig. 2 is a sectional elevation taken at right angles to the shaft.

. Corresponding parts in both figures are de-' noted by the same reference characters.

The crank-shaft chamber or casing of the motorcomprises, as illustrated in the drawings, two sections detachably secured together-namely, an upper normally stationary section 1 and a lower removable section or cover 2and each section is provided with a concavo-convex bulged extension, (desig' nated, respectively, 3 and 4,) extending throughout the length of the casing and joined together or abutting, as shown, to form a longitudinallyextending chamber 5, offset from the main chamber and arranged to have mounted in it a cam-shaft 6, provided with the cams for operating the valves. Each section is provided at both ends with longitudinal extensions, (designated 1' and 2', respectively,) which extensions form boxes for the-reception of the cone-bearings for thecrank-shaft 7 of the motor, and said conebearings comprise sleeves 9, surrounding the shaft, and bushings8 in turn surrounding the said sleeves. The sleeves 9 are screw-threaded on the shaft, so that they maybe adjusted lengthwise of the latter to take up wear, and

may be secured rigidly at the proper adjust ment by set-screws 11 or other equivalent devices, and the bushings 8, which surround the sleeves, are clamped between the two sections land 2 of the casing and are of course held by the casing against turning. The bearings formed by the bushings 8 and sleeves 9 being thus permanently mounted on the crank-shaft Asa result of this construction we secure great simplicity, economy, and compactness of construction, as well as convenience of access and the ability to separate the parts without danger of deranging the adjustment of the bearings.

iting ourselves to the details of construction and arrangement as herein described and illustrated, as it is manifest that variations and modifications may be made in the features of construction and arrangement in the adaptation of the device to-various conditions of use without departing from the spirit and scope of the invention and improvements. We therefore reserve the right to all such variations and modifications as properly fall within the scope of our invention and the terms of the following claim.

Having thus described our invention, we claim and desire to secure by Letters Patent" A crank-shaft chamber or inclosing casing for combustion-motors, comprising as an entirety an upper section and .a lower section,

We do not desire to be understood as lim-' said sections detachably secured together, the upper section being provided with longitudinal extensions at its ends adapted to receive bearings for, the cran k-shaft, whereby the said crank-shaft'may be placed therein before the lower section is secured to the upper section, and said lower section being also provided with longitudinal extensions and hearings clamped between said extensions, comprising a sleeve provided with interior'screW-threads engaging s'crew-th reads on thcrank-shaft by which it can be adjusted thereon, means for securing it on said shaft, and a bushing on said sleeve held in fixed relation to the casing, substantially as described.

In testimony whereof we have signed our names 1n the presence of the subscr1b1ngw1tnesses.

DAVID F. GRAHAM. r FRANK A. FOX. 

